Valve lifter



1,614,350 Jan- 1 1927- A. DAVALOS VALVE LIFTER Filed Sept. 14. 1926 E -Zma KQ Patented Jan. 11, 1927.

PATENT OFFICE.

EDWARD A. DAVALOS, OF NEW YORK, N. Y.

VALVE I LIFTER.

Application filed September 14. 1926. Serial No. 135,404.

This invention aims to provide novel means for compressing the valve spring on an internal combustion engine, and for holding the spring compressed.

It is within the province of the disclosure to improve generally and to enhance the utility of devices of that type to which the invention appertains.

WVith the above and other objects in View which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed may be made with in the scope of what is claimed, without departing from the spirit of the invention.

In the drawings Figure 1 shows in side elevation, a tool constructed in accordance with the invention, the parts in the positions which they will assume before the valve spring has been compressed;

Figure 2 is a view wherein the structure delineated in Figure 1 is shown at right angles to the showing of Figure 1; v Figure 3 is a side elevation showing a slight modification.

Referring to Figures 1 and 2, the valve spring compressor includes a frame 1 comprising a base 2. A guide 3, in the form of a rod, is mounted on one end of the base 2. The opposite edge of the base 2 carries a foot 4 adapted to be engaged with the engine frame 5, whilst the valve spring 6 is being compressed. The foot 4 may be adjustable, and may be in the form of a screw threaded into the base 2, the screw 4 and the guide rod 3 projecting from the base 2 in opposite directions.

A rider 7 is provided and includes, as oooperating elements, a body 8 mounted to slide on the guide rod 3, and an arm 9 projecting from the body 8.

A means is mounted on one of the aforesaid cooperating elements, to wit on the body 8, for engaging the spring 6 which is to be compressed, said means including a rectangular bracket 17, one arm of which is slidable in an opening 19 in the base 2, the said arm being threaded at its upper end, removably, into an opening 20 in the body 8 .of the rider 7. The lower horizontal arm of the bracket 17 carries an abutment 18 adapted to engage the lower end of the spring 6 which is to be compressed.

A mechanism is connected to the guide rod 3, and to the rider 7, for moving the rider on the guide rod. This mechanism includes a lever 11 connected by a fulcrum member 12 with the upper end of the guide rod 3. Links 14 are provided and are spaced apart transversely. A pivot element 15 connects the lower ends of the links 14 with the body 8 of the rider 7 and a pivot element 16 connects the upper ends of the links with the lever 11. The arm 9 has a stop 10 which has no particular function when the machine is arranged as shown in Figure 1 of the drawmgs.

It will be clear that when the lever 11 in Figure 1 is swung over to the right, the pivot elements 16 and 15 will be so disposed with respect to the fulcrum member 12 that the bracket 17 will be held in spring-compressing position. Figure 3, although disclosing a modification, serves to render the foregoing statement relative to the parts 15, 16 and 12, clearly understandable. By means of the lever 11 and the links 14, the bracket 17 is slid endwise in the base 2 of the frame 1, and the spring 6 is compressed. The device may be adjusted, of course, by moving the screw 4 lengthwise in the base 2.

In Figure 3 of the drawings, parts hereinbefore described have been designated by numerals previously used, with the sufiix a. In Figure 3, the bracket 17 is omitted, and its place is taken'by a finger 21, the upper end of which is threaded into the opening 20 of the rider 7*, the finger 21 sliding in the opening 19 of the base 2, to prevent the rider 7 from swinging on the guide rod 3. A bracket 22 is provided,

and has a socket 23 at its upper end, whereby the bracket may be mounted removably on the arm 9, the socket abutting against the stop 10. The bracket 22 is shown as hav ing an obtuse angle 24, but, of course, the bracket 22 may be shaped as desired, depending upon thework in hand.

The operation of the device shown in Figure 3, will be understood readily from what has been stated hereinbefore concerning the operation of the structure shown in Figures 1 and 2.

What is claimed is 1. In a valve spring compressor, a frame comprising a base, and a guide and a foot carried by the base and projecting therefrom in opposite directions; a rider including, as cooperating elements, a body mounted to slide on the guide, and an arm project.- ing from the body; means mounted on one of said cooperating elements for engaging the spring to be compressed; and mechanism connected to the guide and to the rider for moving the rider on the guide.

2. A valve spring compressor constructed as set forth in claim 1, and further char acterized by the fact that the foot is adjustable in the direction of its length in the base.

3. A valve spring compressor constructed as set forth in claim 1, and further characterized by the fact that the foot is a screw threaded into the base for adjustment in a direction approximately at right angles to the base.

. 4. A valve spring compressor constructed as set forth in claim 1, and further characterized by the fact that said mechanism embodies a lever, a fulcrum member connecting the lever With the guide a link, and pivot elements connecting the link respectively with the rider and with the lever, the lever being shiftable to bring the pivot elements into such a position with respect to the fulcrum member that said means 'Will be held in spring-compressing position.

In testimony that I claim the foregoing as my own, I have hereto aflixed my signature.

'EDXVARD A. DAVALOS. 

